Bioprosthetic heart valve with balanced stent post deflection
First Claim
1. A stent comprising:
- an elongated stent member having terminal ends;
at least three flexible post members formed in the stent member, each post member having a pair of opposite sides;
an interconnection of the terminal ends of the stent member positioned between adjacent first and second post members;
a first radius formed in the stent member between the interconnection and a side of each first or second post member adjacent the interconnection; and
a plurality of second radii formed in the stent member at a side of a third post member, the second radii being greater than each first radius in an at rest position.
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Accused Products
Abstract
A heart valve prosthesis including a heart valve formed of a flexible material. An elongated stent member is provided in the valve and includes terminal ends. A plurality of flexible post members are formed in the stent member. Each post member includes a pair of opposite sides. A crimp collar interconnects the terminal ends of the stent member. The crimp collar is positioned between adjacent post members. A first radius is formed in the stent member between the crimp collar and an adjacent side of each adjacent post member. A plurality of second radii are formed in the stent member between an opposite side of a first one of the adjacent post members and an opposite side of a second one of the adjacent post members. The second radii are greater than each first radius.
145 Citations
15 Claims
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1. A stent comprising:
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an elongated stent member having terminal ends;
at least three flexible post members formed in the stent member, each post member having a pair of opposite sides;
an interconnection of the terminal ends of the stent member positioned between adjacent first and second post members;
a first radius formed in the stent member between the interconnection and a side of each first or second post member adjacent the interconnection; and
a plurality of second radii formed in the stent member at a side of a third post member, the second radii being greater than each first radius in an at rest position. - View Dependent Claims (2, 3, 4, 5)
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6. A heart valve prosthesis comprising:
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a heart valve formed of flexible material;
an elongated stent member attached to the valve and having terminal ends;
at least three flexible post members formed in the stent member, each post member having a pair of opposite sides;
a crimp collar interconnecting the terminal ends of the stent member, the crimp collar being between adjacent first and second post members;
a first radius formed in the stent member between the crimp collar and a side of each first or second post member adjacent the crimp collar; and
a plurality of second radii formed in the stent member at a side of a third post member, the second radii being greater than each first radius in an at rest position. - View Dependent Claims (7, 8, 9, 10, 11, 12, 14, 15)
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13. A method of shaping a stent member comprising the steps of:
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forming an elongated stent member having terminal ends and including at least three flexible post members each having a pair of opposite sides;
interconnecting the terminal ends between adjacent first and second post members;
forming a first radius formed in the stent member between interconnected terminal ends and a side of each first or second post member adjacent the terminal ends, and forming a plurality of second radii formed in the stent member at a side of a third post member, the second radii being greater than each first radius in an at rest position.
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Specification